mirror of
https://github.com/minetest/irrlicht.git
synced 2024-11-16 23:40:25 +01:00
461 lines
9.9 KiB
C++
461 lines
9.9 KiB
C++
// Copyright (C) 2014 Patryk Nadrowski
|
|
// This file is part of the "Irrlicht Engine".
|
|
// For conditions of distribution and use, see copyright notice in irrlicht.h
|
|
|
|
#include "MaterialRenderer.h"
|
|
|
|
#include "EVertexAttributes.h"
|
|
#include "IGPUProgrammingServices.h"
|
|
#include "IShaderConstantSetCallBack.h"
|
|
#include "IVideoDriver.h"
|
|
#include "os.h"
|
|
|
|
#include "Driver.h"
|
|
|
|
#include "COpenGLCoreTexture.h"
|
|
#include "COpenGLCoreCacheHandler.h"
|
|
|
|
namespace irr
|
|
{
|
|
namespace video
|
|
{
|
|
|
|
|
|
COpenGL3MaterialRenderer::COpenGL3MaterialRenderer(COpenGL3DriverBase* driver,
|
|
s32& outMaterialTypeNr,
|
|
const c8* vertexShaderProgram,
|
|
const c8* pixelShaderProgram,
|
|
IShaderConstantSetCallBack* callback,
|
|
E_MATERIAL_TYPE baseMaterial,
|
|
s32 userData)
|
|
: Driver(driver), CallBack(callback), Alpha(false), Blending(false), Program(0), UserData(userData)
|
|
{
|
|
#ifdef _DEBUG
|
|
setDebugName("MaterialRenderer");
|
|
#endif
|
|
|
|
switch (baseMaterial)
|
|
{
|
|
case EMT_TRANSPARENT_VERTEX_ALPHA:
|
|
case EMT_TRANSPARENT_ALPHA_CHANNEL:
|
|
Alpha = true;
|
|
break;
|
|
case EMT_ONETEXTURE_BLEND:
|
|
Blending = true;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (CallBack)
|
|
CallBack->grab();
|
|
|
|
init(outMaterialTypeNr, vertexShaderProgram, pixelShaderProgram);
|
|
}
|
|
|
|
|
|
COpenGL3MaterialRenderer::COpenGL3MaterialRenderer(COpenGL3DriverBase* driver,
|
|
IShaderConstantSetCallBack* callback,
|
|
E_MATERIAL_TYPE baseMaterial, s32 userData)
|
|
: Driver(driver), CallBack(callback), Alpha(false), Blending(false), Program(0), UserData(userData)
|
|
{
|
|
switch (baseMaterial)
|
|
{
|
|
case EMT_TRANSPARENT_VERTEX_ALPHA:
|
|
case EMT_TRANSPARENT_ALPHA_CHANNEL:
|
|
Alpha = true;
|
|
break;
|
|
case EMT_ONETEXTURE_BLEND:
|
|
Blending = true;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (CallBack)
|
|
CallBack->grab();
|
|
}
|
|
|
|
|
|
COpenGL3MaterialRenderer::~COpenGL3MaterialRenderer()
|
|
{
|
|
if (CallBack)
|
|
CallBack->drop();
|
|
|
|
if (Program)
|
|
{
|
|
GLuint shaders[8];
|
|
GLint count;
|
|
GL.GetAttachedShaders(Program, 8, &count, shaders);
|
|
|
|
count=core::min_(count,8);
|
|
for (GLint i=0; i<count; ++i)
|
|
GL.DeleteShader(shaders[i]);
|
|
GL.DeleteProgram(Program);
|
|
Program = 0;
|
|
}
|
|
|
|
UniformInfo.clear();
|
|
}
|
|
|
|
GLuint COpenGL3MaterialRenderer::getProgram() const
|
|
{
|
|
return Program;
|
|
}
|
|
|
|
void COpenGL3MaterialRenderer::init(s32& outMaterialTypeNr,
|
|
const c8* vertexShaderProgram,
|
|
const c8* pixelShaderProgram,
|
|
bool addMaterial)
|
|
{
|
|
outMaterialTypeNr = -1;
|
|
|
|
Program = GL.CreateProgram();
|
|
|
|
if (!Program)
|
|
return;
|
|
|
|
if (vertexShaderProgram)
|
|
if (!createShader(GL_VERTEX_SHADER, vertexShaderProgram))
|
|
return;
|
|
|
|
if (pixelShaderProgram)
|
|
if (!createShader(GL_FRAGMENT_SHADER, pixelShaderProgram))
|
|
return;
|
|
|
|
for ( size_t i = 0; i < EVA_COUNT; ++i )
|
|
GL.BindAttribLocation( Program, i, sBuiltInVertexAttributeNames[i]);
|
|
|
|
if (!linkProgram())
|
|
return;
|
|
|
|
if (addMaterial)
|
|
outMaterialTypeNr = Driver->addMaterialRenderer(this);
|
|
}
|
|
|
|
|
|
bool COpenGL3MaterialRenderer::OnRender(IMaterialRendererServices* service, E_VERTEX_TYPE vtxtype)
|
|
{
|
|
if (CallBack && Program)
|
|
CallBack->OnSetConstants(this, UserData);
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
void COpenGL3MaterialRenderer::OnSetMaterial(const video::SMaterial& material,
|
|
const video::SMaterial& lastMaterial,
|
|
bool resetAllRenderstates,
|
|
video::IMaterialRendererServices* services)
|
|
{
|
|
COpenGL3CacheHandler* cacheHandler = Driver->getCacheHandler();
|
|
|
|
cacheHandler->setProgram(Program);
|
|
|
|
Driver->setBasicRenderStates(material, lastMaterial, resetAllRenderstates);
|
|
|
|
if (Alpha)
|
|
{
|
|
cacheHandler->setBlend(true);
|
|
cacheHandler->setBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
|
}
|
|
else if (Blending)
|
|
{
|
|
E_BLEND_FACTOR srcRGBFact,dstRGBFact,srcAlphaFact,dstAlphaFact;
|
|
E_MODULATE_FUNC modulate;
|
|
u32 alphaSource;
|
|
unpack_textureBlendFuncSeparate(srcRGBFact, dstRGBFact, srcAlphaFact, dstAlphaFact, modulate, alphaSource, material.MaterialTypeParam);
|
|
|
|
cacheHandler->setBlendFuncSeparate(Driver->getGLBlend(srcRGBFact), Driver->getGLBlend(dstRGBFact),
|
|
Driver->getGLBlend(srcAlphaFact), Driver->getGLBlend(dstAlphaFact));
|
|
|
|
cacheHandler->setBlend(true);
|
|
}
|
|
|
|
if (CallBack)
|
|
CallBack->OnSetMaterial(material);
|
|
}
|
|
|
|
|
|
void COpenGL3MaterialRenderer::OnUnsetMaterial()
|
|
{
|
|
}
|
|
|
|
|
|
bool COpenGL3MaterialRenderer::isTransparent() const
|
|
{
|
|
return (Alpha || Blending);
|
|
}
|
|
|
|
|
|
s32 COpenGL3MaterialRenderer::getRenderCapability() const
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
|
|
bool COpenGL3MaterialRenderer::createShader(GLenum shaderType, const char* shader)
|
|
{
|
|
if (Program)
|
|
{
|
|
GLuint shaderHandle = GL.CreateShader(shaderType);
|
|
GL.ShaderSource(shaderHandle, 1, &shader, NULL);
|
|
GL.CompileShader(shaderHandle);
|
|
|
|
GLint status = 0;
|
|
|
|
GL.GetShaderiv(shaderHandle, GL_COMPILE_STATUS, &status);
|
|
|
|
if (status != GL_TRUE)
|
|
{
|
|
os::Printer::log("GLSL shader failed to compile", ELL_ERROR);
|
|
|
|
GLint maxLength=0;
|
|
GLint length;
|
|
|
|
GL.GetShaderiv(shaderHandle, GL_INFO_LOG_LENGTH,
|
|
&maxLength);
|
|
|
|
if (maxLength)
|
|
{
|
|
GLchar *infoLog = new GLchar[maxLength];
|
|
GL.GetShaderInfoLog(shaderHandle, maxLength, &length, infoLog);
|
|
os::Printer::log(reinterpret_cast<const c8*>(infoLog), ELL_ERROR);
|
|
delete [] infoLog;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
GL.AttachShader(Program, shaderHandle);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
bool COpenGL3MaterialRenderer::linkProgram()
|
|
{
|
|
if (Program)
|
|
{
|
|
GL.LinkProgram(Program);
|
|
|
|
GLint status = 0;
|
|
|
|
GL.GetProgramiv(Program, GL_LINK_STATUS, &status);
|
|
|
|
if (!status)
|
|
{
|
|
os::Printer::log("GLSL shader program failed to link", ELL_ERROR);
|
|
|
|
GLint maxLength=0;
|
|
GLsizei length;
|
|
|
|
GL.GetProgramiv(Program, GL_INFO_LOG_LENGTH, &maxLength);
|
|
|
|
if (maxLength)
|
|
{
|
|
GLchar *infoLog = new GLchar[maxLength];
|
|
GL.GetProgramInfoLog(Program, maxLength, &length, infoLog);
|
|
os::Printer::log(reinterpret_cast<const c8*>(infoLog), ELL_ERROR);
|
|
delete [] infoLog;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
GLint num = 0;
|
|
|
|
GL.GetProgramiv(Program, GL_ACTIVE_UNIFORMS, &num);
|
|
|
|
if (num == 0)
|
|
return true;
|
|
|
|
GLint maxlen = 0;
|
|
|
|
GL.GetProgramiv(Program, GL_ACTIVE_UNIFORM_MAX_LENGTH, &maxlen);
|
|
|
|
if (maxlen == 0)
|
|
{
|
|
os::Printer::log("GLSL: failed to retrieve uniform information", ELL_ERROR);
|
|
return false;
|
|
}
|
|
|
|
// seems that some implementations use an extra null terminator.
|
|
++maxlen;
|
|
c8 *buf = new c8[maxlen];
|
|
|
|
UniformInfo.clear();
|
|
UniformInfo.reallocate(num);
|
|
|
|
for (GLint i=0; i < num; ++i)
|
|
{
|
|
SUniformInfo ui;
|
|
memset(buf, 0, maxlen);
|
|
|
|
GLint size;
|
|
GL.GetActiveUniform(Program, i, maxlen, 0, &size, &ui.type, reinterpret_cast<GLchar*>(buf));
|
|
|
|
core::stringc name = "";
|
|
|
|
// array support, workaround for some bugged drivers.
|
|
for (s32 i = 0; i < maxlen; ++i)
|
|
{
|
|
if (buf[i] == '[' || buf[i] == '\0')
|
|
break;
|
|
|
|
name += buf[i];
|
|
}
|
|
|
|
ui.name = name;
|
|
ui.location = GL.GetUniformLocation(Program, buf);
|
|
|
|
UniformInfo.push_back(ui);
|
|
}
|
|
|
|
delete [] buf;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
void COpenGL3MaterialRenderer::setBasicRenderStates(const SMaterial& material,
|
|
const SMaterial& lastMaterial,
|
|
bool resetAllRenderstates)
|
|
{
|
|
Driver->setBasicRenderStates(material, lastMaterial, resetAllRenderstates);
|
|
}
|
|
|
|
s32 COpenGL3MaterialRenderer::getVertexShaderConstantID(const c8* name)
|
|
{
|
|
return getPixelShaderConstantID(name);
|
|
}
|
|
|
|
s32 COpenGL3MaterialRenderer::getPixelShaderConstantID(const c8* name)
|
|
{
|
|
for (u32 i = 0; i < UniformInfo.size(); ++i)
|
|
{
|
|
if (UniformInfo[i].name == name)
|
|
return i;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
bool COpenGL3MaterialRenderer::setVertexShaderConstant(s32 index, const f32* floats, int count)
|
|
{
|
|
return setPixelShaderConstant(index, floats, count);
|
|
}
|
|
|
|
bool COpenGL3MaterialRenderer::setVertexShaderConstant(s32 index, const s32* ints, int count)
|
|
{
|
|
return setPixelShaderConstant(index, ints, count);
|
|
}
|
|
|
|
bool COpenGL3MaterialRenderer::setVertexShaderConstant(s32 index, const u32* ints, int count)
|
|
{
|
|
return setPixelShaderConstant(index, ints, count);
|
|
}
|
|
|
|
bool COpenGL3MaterialRenderer::setPixelShaderConstant(s32 index, const f32* floats, int count)
|
|
{
|
|
if(index < 0 || UniformInfo[index].location < 0)
|
|
return false;
|
|
|
|
bool status = true;
|
|
|
|
switch (UniformInfo[index].type)
|
|
{
|
|
case GL_FLOAT:
|
|
GL.Uniform1fv(UniformInfo[index].location, count, floats);
|
|
break;
|
|
case GL_FLOAT_VEC2:
|
|
GL.Uniform2fv(UniformInfo[index].location, count/2, floats);
|
|
break;
|
|
case GL_FLOAT_VEC3:
|
|
GL.Uniform3fv(UniformInfo[index].location, count/3, floats);
|
|
break;
|
|
case GL_FLOAT_VEC4:
|
|
GL.Uniform4fv(UniformInfo[index].location, count/4, floats);
|
|
break;
|
|
case GL_FLOAT_MAT2:
|
|
GL.UniformMatrix2fv(UniformInfo[index].location, count/4, false, floats);
|
|
break;
|
|
case GL_FLOAT_MAT3:
|
|
GL.UniformMatrix3fv(UniformInfo[index].location, count/9, false, floats);
|
|
break;
|
|
case GL_FLOAT_MAT4:
|
|
GL.UniformMatrix4fv(UniformInfo[index].location, count/16, false, floats);
|
|
break;
|
|
case GL_SAMPLER_2D:
|
|
case GL_SAMPLER_CUBE:
|
|
{
|
|
if(floats)
|
|
{
|
|
const GLint id = (GLint)(*floats);
|
|
GL.Uniform1iv(UniformInfo[index].location, 1, &id);
|
|
}
|
|
else
|
|
status = false;
|
|
}
|
|
break;
|
|
default:
|
|
status = false;
|
|
break;
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
bool COpenGL3MaterialRenderer::setPixelShaderConstant(s32 index, const s32* ints, int count)
|
|
{
|
|
if(index < 0 || UniformInfo[index].location < 0)
|
|
return false;
|
|
|
|
bool status = true;
|
|
|
|
switch (UniformInfo[index].type)
|
|
{
|
|
case GL_INT:
|
|
case GL_BOOL:
|
|
GL.Uniform1iv(UniformInfo[index].location, count, ints);
|
|
break;
|
|
case GL_INT_VEC2:
|
|
case GL_BOOL_VEC2:
|
|
GL.Uniform2iv(UniformInfo[index].location, count/2, ints);
|
|
break;
|
|
case GL_INT_VEC3:
|
|
case GL_BOOL_VEC3:
|
|
GL.Uniform3iv(UniformInfo[index].location, count/3, ints);
|
|
break;
|
|
case GL_INT_VEC4:
|
|
case GL_BOOL_VEC4:
|
|
GL.Uniform4iv(UniformInfo[index].location, count/4, ints);
|
|
break;
|
|
case GL_SAMPLER_2D:
|
|
case GL_SAMPLER_CUBE:
|
|
GL.Uniform1iv(UniformInfo[index].location, 1, ints);
|
|
break;
|
|
default:
|
|
status = false;
|
|
break;
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
bool COpenGL3MaterialRenderer::setPixelShaderConstant(s32 index, const u32* ints, int count)
|
|
{
|
|
os::Printer::log("Unsigned int support needs at least GLES 3.0", ELL_WARNING);
|
|
return false;
|
|
}
|
|
|
|
IVideoDriver* COpenGL3MaterialRenderer::getVideoDriver()
|
|
{
|
|
return Driver;
|
|
}
|
|
|
|
}
|
|
}
|